Nah, nothing here. Usually hear stuff like that and haven't heard a word.
All the 2yo events I've seen out there have gone over the Mile anyway. Maybe they sent them over 2300m at some stage but I can't recall it happening.
If it's indeed true then my reaction is that it's a bit ridiculous to think 100m less will make any difference at all.
If they're not going to punch out the 2300m then what makes anyone think they'll magically punch out 2200m?